As per modern classification of solar system, number of planets excluding Earth is:
A
7
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B
8
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C
9
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D
10
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Solution
The correct option is A7 There are eight planets in the solar system. The four inner terrestrial planets are Mercury, Venus, Earth, and Mars, all of which consist mainly of rock. The four outer planets are Jupiter, Saturn, Neptune, and Uranus, giant planets that consist mainly of either gases or ice.
Thus, as per the modern classification of the solar system, number of planets excluding Earth is 7.